/* Direction contract lives in index.html, first child of <body>. */

@font-face {
  font-family: "Silkscreen";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/silkscreen-400.woff2") format("woff2");
}

@font-face {
  font-family: "Silkscreen";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/silkscreen-700.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/jetbrains-mono-400.woff2") format("woff2");
}

:root {
  color-scheme: light dark;
  --ground: #f2ede2;
  --ink: #15130f;
  --muted: #5b5648;
  --rule: #15130f;
  --accent: #c1272a;
  --accent-ink: #f2ede2;
  --rule-w: 2px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #16140f;
    --ink: #f2ede2;
    --muted: #a39b85;
    --rule: #f2ede2;
    --accent: #e2453f;
    --accent-ink: #16140f;
  }
}

:root[data-theme="dark"] {
  --ground: #16140f;
  --ink: #f2ede2;
  --muted: #a39b85;
  --rule: #f2ede2;
  --accent: #e2453f;
  --accent-ink: #16140f;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.mono {
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

.bitmap {
  font-family: "Silkscreen", "JetBrains Mono", ui-monospace, monospace;
  image-rendering: pixelated;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 4rem;
}

/* ---- header ---- */

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.25rem 0;
  border-bottom: var(--rule-w) solid var(--rule);
  margin-bottom: 1.5rem;
}

.wordmark {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.tagline {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---- hero ---- */

.hero {
  border: var(--rule-w) solid var(--rule);
  padding: clamp(1.25rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.hero-headline {
  font-size: clamp(2.8rem, 9vw, 6rem);
  line-height: 0.9;
  text-transform: uppercase;
  margin: 0 0 1.5rem;
  letter-spacing: 0.01em;
}

.hero-claim {
  max-width: 34rem;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--rule);
  padding: 0.3rem 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex: none;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.3rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: var(--rule-w) solid var(--rule);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 700;
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: default;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
}

.dotfield {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--ink) 1.1px, transparent 1.6px);
  background-size: 7px 7px;
  -webkit-mask-image: radial-gradient(circle at 88% 12%, black 0%, black 12%, transparent 65%);
  mask-image: radial-gradient(circle at 88% 12%, black 0%, black 12%, transparent 65%);
  opacity: 0.4;
  pointer-events: none;
}

/* ---- how it works ---- */

.modules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: var(--rule-w) solid var(--rule);
  margin-bottom: 1.5rem;
}

.module {
  padding: 1.5rem;
  border-left: var(--rule-w) solid var(--rule);
}

.module:first-child { border-left: none; }

.module h3 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.module-tag {
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
  border: 1px solid var(--rule);
  padding: 0.1rem 0.4rem;
}

.module p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.module code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  background: var(--ink);
  color: var(--ground);
  padding: 0.05rem 0.3rem;
  font-size: 0.85em;
}

/* ---- tool ---- */

.hero-tool {
  border-left: var(--rule-w) solid var(--rule);
  padding-left: clamp(1.5rem, 4vw, 3rem);
  position: relative;
}

.dropzone {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 7rem;
  border: var(--rule-w) dashed var(--rule);
  cursor: pointer;
  text-align: center;
  padding: 1rem;
  margin-bottom: 1.25rem;
  transition: background 0.15s ease;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.dropzone.dragover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-style: solid;
}

.dropzone input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}

.filters {
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.filters summary {
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.filters[open] summary { margin-bottom: 1rem; }

.filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.9rem;
}

.filters-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.filters-grid label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

input[type="number"],
select {
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--rule);
  background: var(--ground);
  color: var(--ink);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.85rem;
}

button { font: inherit; }

#status {
  min-height: 1.2rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 1rem;
}

#status.error { color: var(--accent); }

/* ---- results ---- */

.stat-line {
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.6rem 0;
  margin: 0 0 1.5rem;
}

.stat-line strong {
  color: var(--ink);
  font-weight: 700;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.results-header h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0;
}

.table-wrap {
  border: var(--rule-w) solid var(--rule);
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  white-space: nowrap;
}

thead th {
  background: var(--ink);
  color: var(--ground);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: sticky;
  top: 0;
}

tbody tr {
  border-top: 1px solid var(--rule);
}

tbody td.num {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

tbody td.word {
  font-weight: 700;
}

tbody td.example {
  color: var(--muted);
  font-style: italic;
}

.pos-tag {
  display: inline-block;
  border: 1px solid var(--rule);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.1rem 0.4rem;
  color: var(--muted);
}

/* ---- footer ---- */

.site-footer {
  border-top: var(--rule-w) solid var(--rule);
  padding-top: 1.25rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-tool {
    border-left: none;
    padding-left: 0;
    border-top: var(--rule-w) solid var(--rule);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
  }
  .dotfield {
    -webkit-mask-image: radial-gradient(circle at 85% 90%, black 0%, black 14%, transparent 60%);
    mask-image: radial-gradient(circle at 85% 90%, black 0%, black 14%, transparent 60%);
  }
}

@media (max-width: 640px) {
  .modules { grid-template-columns: 1fr; }
  .module { border-left: none; border-top: var(--rule-w) solid var(--rule); }
  .module:first-child { border-top: none; }
}
